forked from AuroraMiddleware/gtk
658 lines
18 KiB
C
658 lines
18 KiB
C
#include "gskglrenderopsprivate.h"
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static inline gboolean
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rect_equal (const graphene_rect_t *a,
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const graphene_rect_t *b)
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{
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return memcmp (a, b, sizeof (graphene_rect_t)) == 0;
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}
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void
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ops_finish (RenderOpBuilder *builder)
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{
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if (builder->mv_stack)
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g_array_free (builder->mv_stack, TRUE);
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}
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static inline void
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rgba_to_float (const GdkRGBA *c,
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float *f)
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{
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f[0] = c->red;
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f[1] = c->green;
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f[2] = c->blue;
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f[3] = c->alpha;
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}
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/* Debugging only! */
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void
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ops_dump_framebuffer (RenderOpBuilder *builder,
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const char *filename,
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int width,
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int height)
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{
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RenderOp op;
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op.op = OP_DUMP_FRAMEBUFFER;
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op.dump.filename = g_strdup (filename);
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op.dump.width = width;
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op.dump.height = height;
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g_array_append_val (builder->render_ops, op);
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}
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float
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ops_get_scale (const RenderOpBuilder *builder)
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{
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const MatrixStackEntry *head;
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g_assert (builder->mv_stack != NULL);
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g_assert (builder->mv_stack->len >= 1);
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head = &g_array_index (builder->mv_stack, MatrixStackEntry, builder->mv_stack->len - 1);
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/* TODO: Use two separate values */
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return MAX (head->metadata.scale_x,
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head->metadata.scale_y);
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}
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static void
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extract_matrix_metadata (const graphene_matrix_t *m,
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OpsMatrixMetadata *md)
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{
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graphene_vec3_t col1;
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graphene_vec3_t col2;
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/* Translate */
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md->translate_x = graphene_matrix_get_value (m, 3, 0);
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md->translate_y = graphene_matrix_get_value (m, 3, 1);
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/* Scale */
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graphene_vec3_init (&col1,
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graphene_matrix_get_value (m, 0, 0),
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graphene_matrix_get_value (m, 1, 0),
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graphene_matrix_get_value (m, 2, 0));
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graphene_vec3_init (&col2,
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graphene_matrix_get_value (m, 0, 1),
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graphene_matrix_get_value (m, 1, 1),
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graphene_matrix_get_value (m, 2, 1));
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md->scale_x = graphene_vec3_length (&col1);
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md->scale_y = graphene_vec3_length (&col2);
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/* A simple matrix (in our case) is one that doesn't do anything but scale
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* and/or translate.
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*
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* For orher matrices, we fall back to offscreen drawing.
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*/
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md->simple = TRUE;
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{
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static const guchar check_zero[4][4] = {
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{ 0, 1, 0, 1 }, /* If any of the values marked as '1' here is non-zero, */
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{ 1, 0, 0, 1 }, /* We have to resort to offscreen drawing later on. */
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{ 1, 1, 0, 1 },
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{ 0, 0, 0, 0 },
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};
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int x, y;
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for (x = 0; x < 4; x ++)
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for (y = 0; y < 4; y ++)
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if (check_zero[y][x] &&
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graphene_matrix_get_value (m, y, x) != 0.0f)
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{
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md->simple = FALSE;
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goto out;
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}
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}
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out:
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md->only_translation = (md->simple && md->scale_x == 1 && md->scale_y == 1);
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}
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void
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ops_transform_bounds_modelview (const RenderOpBuilder *builder,
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const graphene_rect_t *src,
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graphene_rect_t *dst)
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{
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const float scale = ops_get_scale (builder);
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const MatrixStackEntry *head;
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g_assert (builder->mv_stack != NULL);
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g_assert (builder->mv_stack->len >= 1);
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head = &g_array_index (builder->mv_stack, MatrixStackEntry, builder->mv_stack->len - 1);
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if (head->metadata.only_translation)
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{
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*dst = *src;
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graphene_rect_offset (dst,
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head->metadata.translate_x,
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head->metadata.translate_y);
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}
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else
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{
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graphene_matrix_transform_bounds (builder->current_modelview,
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src,
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dst);
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}
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graphene_rect_offset (dst, builder->dx * scale, builder->dy * scale);
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}
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gboolean
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ops_modelview_is_simple (const RenderOpBuilder *builder)
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{
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const MatrixStackEntry *head;
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g_assert (builder->mv_stack != NULL);
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g_assert (builder->mv_stack->len >= 1);
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head = &g_array_index (builder->mv_stack, MatrixStackEntry, builder->mv_stack->len - 1);
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return head->metadata.simple;
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}
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void
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ops_set_program (RenderOpBuilder *builder,
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const Program *program)
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{
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/* The tricky part about this is that we want to initialize all uniforms of a program
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* to the current value from the builder, but only once. */
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static const GskRoundedRect empty_clip;
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static const graphene_matrix_t empty_matrix;
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static const graphene_rect_t empty_rect;
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RenderOp op;
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ProgramState *program_state;
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if (builder->current_program == program)
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return;
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op.op = OP_CHANGE_PROGRAM;
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op.program = program;
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g_array_append_val (builder->render_ops, op);
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builder->current_program = program;
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program_state = &builder->program_state[program->index];
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/* If the projection is not yet set for this program, we use the current one. */
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if (memcmp (&empty_matrix, &program_state->projection, sizeof (graphene_matrix_t)) == 0 ||
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memcmp (&builder->current_projection, &program_state->projection, sizeof (graphene_matrix_t)) != 0)
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{
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op.op = OP_CHANGE_PROJECTION;
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op.projection = builder->current_projection;
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g_array_append_val (builder->render_ops, op);
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program_state->projection = builder->current_projection;
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}
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if (memcmp (&empty_matrix, &program_state->modelview, sizeof (graphene_matrix_t)) == 0 ||
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memcmp (builder->current_modelview, &program_state->modelview, sizeof (graphene_matrix_t)) != 0)
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{
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op.op = OP_CHANGE_MODELVIEW;
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op.modelview = *builder->current_modelview;
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g_array_append_val (builder->render_ops, op);
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program_state->modelview = *builder->current_modelview;
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}
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if (rect_equal (&empty_rect, &program_state->viewport) ||
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!rect_equal (&builder->current_viewport, &program_state->viewport))
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{
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op.op = OP_CHANGE_VIEWPORT;
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op.viewport = builder->current_viewport;
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g_array_append_val (builder->render_ops, op);
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program_state->viewport = builder->current_viewport;
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}
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if (memcmp (&empty_clip, &program_state->clip, sizeof (GskRoundedRect)) == 0 ||
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memcmp (&builder->current_clip, &program_state->clip, sizeof (GskRoundedRect)) != 0)
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{
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op.op = OP_CHANGE_CLIP;
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op.clip = builder->current_clip;
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g_array_append_val (builder->render_ops, op);
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program_state->clip = builder->current_clip;
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}
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if (program_state->opacity != builder->current_opacity)
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{
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op.op = OP_CHANGE_OPACITY;
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op.opacity = builder->current_opacity;
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g_array_append_val (builder->render_ops, op);
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program_state->opacity = builder->current_opacity;
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}
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builder->current_program_state = &builder->program_state[program->index];
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}
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GskRoundedRect
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ops_set_clip (RenderOpBuilder *builder,
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const GskRoundedRect *clip)
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{
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RenderOp *last_op;
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GskRoundedRect prev_clip;
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if (builder->render_ops->len > 0)
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{
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last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
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if (last_op->op == OP_CHANGE_CLIP)
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{
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last_op->clip = *clip;
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}
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else
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{
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RenderOp op;
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op.op = OP_CHANGE_CLIP;
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op.clip = *clip;
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g_array_append_val (builder->render_ops, op);
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}
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}
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if (builder->current_program != NULL)
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builder->current_program_state->clip = *clip;
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prev_clip = builder->current_clip;
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builder->current_clip = *clip;
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return prev_clip;
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}
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static void
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ops_set_modelview (RenderOpBuilder *builder,
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const graphene_matrix_t *modelview)
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{
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RenderOp op;
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if (builder->current_program &&
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memcmp (&builder->current_program_state->modelview, modelview,
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sizeof (graphene_matrix_t)) == 0)
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return;
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if (builder->render_ops->len > 0)
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{
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RenderOp *last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
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if (last_op->op == OP_CHANGE_MODELVIEW)
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{
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last_op->modelview = *modelview;
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}
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else
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{
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op.op = OP_CHANGE_MODELVIEW;
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op.modelview = *modelview;
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g_array_append_val (builder->render_ops, op);
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}
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}
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else
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{
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op.op = OP_CHANGE_MODELVIEW;
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op.modelview = *modelview;
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g_array_append_val (builder->render_ops, op);
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}
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if (builder->current_program != NULL)
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builder->current_program_state->modelview = *modelview;
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}
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void
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ops_push_modelview (RenderOpBuilder *builder,
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const graphene_matrix_t *mv)
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{
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MatrixStackEntry *entry;
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if (G_UNLIKELY (builder->mv_stack == NULL))
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builder->mv_stack = g_array_new (FALSE, TRUE, sizeof (MatrixStackEntry));
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g_assert (builder->mv_stack != NULL);
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g_array_set_size (builder->mv_stack, builder->mv_stack->len + 1);
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entry = &g_array_index (builder->mv_stack, MatrixStackEntry, builder->mv_stack->len - 1);
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entry->matrix = *mv;
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extract_matrix_metadata (mv, &entry->metadata);
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builder->current_modelview = &entry->matrix;
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ops_set_modelview (builder, mv);
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}
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void
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ops_pop_modelview (RenderOpBuilder *builder)
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{
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const graphene_matrix_t *m;
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const MatrixStackEntry *head;
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g_assert (builder->mv_stack);
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g_assert (builder->mv_stack->len >= 1);
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builder->mv_stack->len --;
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head = &g_array_index (builder->mv_stack, MatrixStackEntry, builder->mv_stack->len - 1);
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m = &head->matrix;
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if (builder->mv_stack->len >= 1)
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{
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builder->current_modelview = m;
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ops_set_modelview (builder, m);
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}
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else
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{
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builder->current_modelview = NULL;
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}
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}
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graphene_matrix_t
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ops_set_projection (RenderOpBuilder *builder,
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const graphene_matrix_t *projection)
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{
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RenderOp op;
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graphene_matrix_t prev_mv;
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if (builder->render_ops->len > 0)
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{
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RenderOp *last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
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if (last_op->op == OP_CHANGE_PROJECTION)
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{
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last_op->projection = *projection;
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}
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else
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{
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op.op = OP_CHANGE_PROJECTION;
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op.projection = *projection;
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g_array_append_val (builder->render_ops, op);
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}
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}
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else
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{
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op.op = OP_CHANGE_PROJECTION;
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op.projection = *projection;
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g_array_append_val (builder->render_ops, op);
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}
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if (builder->current_program != NULL)
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builder->current_program_state->projection = *projection;
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prev_mv = builder->current_projection;
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builder->current_projection = *projection;
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return prev_mv;
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}
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graphene_rect_t
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ops_set_viewport (RenderOpBuilder *builder,
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const graphene_rect_t *viewport)
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{
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RenderOp op;
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graphene_rect_t prev_viewport;
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if (builder->current_program_state != NULL &&
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rect_equal (&builder->current_program_state->viewport, viewport))
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return builder->current_program_state->viewport;
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op.op = OP_CHANGE_VIEWPORT;
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op.viewport = *viewport;
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g_array_append_val (builder->render_ops, op);
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if (builder->current_program != NULL)
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builder->current_program_state->viewport = *viewport;
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prev_viewport = builder->current_viewport;
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builder->current_viewport = *viewport;
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return prev_viewport;
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}
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void
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ops_set_texture (RenderOpBuilder *builder,
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int texture_id)
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{
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RenderOp op;
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if (builder->current_texture == texture_id)
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return;
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op.op = OP_CHANGE_SOURCE_TEXTURE;
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op.texture_id = texture_id;
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g_array_append_val (builder->render_ops, op);
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builder->current_texture = texture_id;
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}
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int
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ops_set_render_target (RenderOpBuilder *builder,
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int render_target_id)
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{
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RenderOp op;
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int prev_render_target;
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if (builder->current_render_target == render_target_id)
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return render_target_id;
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prev_render_target = builder->current_render_target;
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if (builder->render_ops->len > 0)
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{
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RenderOp *last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
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if (last_op->op == OP_CHANGE_RENDER_TARGET)
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{
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last_op->render_target_id = render_target_id;
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}
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else
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{
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op.op = OP_CHANGE_RENDER_TARGET;
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op.render_target_id = render_target_id;
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g_array_append_val (builder->render_ops, op);
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}
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}
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else
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{
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op.op = OP_CHANGE_RENDER_TARGET;
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op.render_target_id = render_target_id;
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g_array_append_val (builder->render_ops, op);
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}
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builder->current_render_target = render_target_id;
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return prev_render_target;
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}
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float
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ops_set_opacity (RenderOpBuilder *builder,
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float opacity)
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{
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RenderOp op;
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float prev_opacity;
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RenderOp *last_op;
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if (builder->current_opacity == opacity)
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return opacity;
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if (builder->render_ops->len > 0)
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{
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last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
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if (last_op->op == OP_CHANGE_OPACITY)
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{
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last_op->opacity = opacity;
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}
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else
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{
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op.op = OP_CHANGE_OPACITY;
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op.opacity = opacity;
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g_array_append_val (builder->render_ops, op);
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}
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}
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else
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{
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op.op = OP_CHANGE_OPACITY;
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op.opacity = opacity;
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g_array_append_val (builder->render_ops, op);
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}
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prev_opacity = builder->current_opacity;
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builder->current_opacity = opacity;
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if (builder->current_program != NULL)
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builder->current_program_state->opacity = opacity;
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return prev_opacity;
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}
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void
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ops_set_color (RenderOpBuilder *builder,
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const GdkRGBA *color)
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{
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RenderOp op;
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if (gdk_rgba_equal (color, &builder->current_program_state->color))
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return;
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builder->current_program_state->color = *color;
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op.op = OP_CHANGE_COLOR;
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op.color = *color;
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g_array_append_val (builder->render_ops, op);
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}
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void
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ops_set_color_matrix (RenderOpBuilder *builder,
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const graphene_matrix_t *matrix,
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const graphene_vec4_t *offset)
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{
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RenderOp op;
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if (memcmp (matrix,
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&builder->current_program_state->color_matrix.matrix,
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sizeof (graphene_matrix_t)) == 0 &&
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memcmp (offset,
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&builder->current_program_state->color_matrix.offset,
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sizeof (graphene_vec4_t)) == 0)
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return;
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builder->current_program_state->color_matrix.matrix = *matrix;
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builder->current_program_state->color_matrix.offset = *offset;
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op.op = OP_CHANGE_COLOR_MATRIX;
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op.color_matrix.matrix = *matrix;
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op.color_matrix.offset = *offset;
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g_array_append_val (builder->render_ops, op);
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}
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void
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ops_set_border (RenderOpBuilder *builder,
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const GskRoundedRect *outline)
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{
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RenderOp op;
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if (memcmp (&builder->current_program_state->border.outline,
|
|
outline, sizeof (GskRoundedRect)) == 0)
|
|
return;
|
|
|
|
builder->current_program_state->border.outline = *outline;
|
|
|
|
op.op = OP_CHANGE_BORDER;
|
|
op.border.outline = *outline;
|
|
g_array_append_val (builder->render_ops, op);
|
|
}
|
|
|
|
void
|
|
ops_set_border_width (RenderOpBuilder *builder,
|
|
const float *widths)
|
|
{
|
|
RenderOp op;
|
|
|
|
if (memcmp (builder->current_program_state->border.widths,
|
|
widths, sizeof (float) * 4) == 0)
|
|
return;
|
|
|
|
memcpy (&builder->current_program_state->border.widths,
|
|
widths, sizeof (float) * 4);
|
|
|
|
op.op = OP_CHANGE_BORDER_WIDTH;
|
|
op.border.widths[0] = widths[0];
|
|
op.border.widths[1] = widths[1];
|
|
op.border.widths[2] = widths[2];
|
|
op.border.widths[3] = widths[3];
|
|
|
|
g_array_append_val (builder->render_ops, op);
|
|
}
|
|
|
|
void
|
|
ops_set_border_color (RenderOpBuilder *builder,
|
|
const GdkRGBA *color)
|
|
{
|
|
RenderOp op;
|
|
op.op = OP_CHANGE_BORDER_COLOR;
|
|
rgba_to_float (color, op.border.color);
|
|
|
|
if (memcmp (&op.border.color, &builder->current_program_state->border.color,
|
|
sizeof (float) * 4) == 0)
|
|
return;
|
|
|
|
rgba_to_float (color, builder->current_program_state->border.color);
|
|
|
|
g_array_append_val (builder->render_ops, op);
|
|
}
|
|
|
|
void
|
|
ops_draw (RenderOpBuilder *builder,
|
|
const GskQuadVertex vertex_data[GL_N_VERTICES])
|
|
{
|
|
RenderOp *last_op;
|
|
|
|
last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
|
|
/* If the previous op was a DRAW as well, we didn't change anything between the two calls,
|
|
* so these are just 2 subsequent draw calls. Same VAO, same program etc.
|
|
* And the offsets into the vao are in order as well, so make it one draw call. */
|
|
if (last_op->op == OP_DRAW)
|
|
{
|
|
/* We allow ourselves a little trick here. We still have to add a CHANGE_VAO op for
|
|
* this draw call so we can add our vertex data there, but we want it to be placed before
|
|
* the last draw call, so we reorder those. */
|
|
RenderOp new_draw;
|
|
new_draw.op = OP_DRAW;
|
|
new_draw.draw.vao_offset = last_op->draw.vao_offset;
|
|
new_draw.draw.vao_size = last_op->draw.vao_size + GL_N_VERTICES;
|
|
|
|
last_op->op = OP_CHANGE_VAO;
|
|
memcpy (&last_op->vertex_data, vertex_data, sizeof(GskQuadVertex) * GL_N_VERTICES);
|
|
|
|
/* Now add the DRAW */
|
|
g_array_append_val (builder->render_ops, new_draw);
|
|
}
|
|
else
|
|
{
|
|
const gsize n_ops = builder->render_ops->len;
|
|
RenderOp *op;
|
|
gsize offset = builder->buffer_size / sizeof (GskQuadVertex);
|
|
|
|
/* We will add two render ops here. */
|
|
g_array_set_size (builder->render_ops, n_ops + 2);
|
|
|
|
op = &g_array_index (builder->render_ops, RenderOp, n_ops);
|
|
op->op = OP_CHANGE_VAO;
|
|
memcpy (&op->vertex_data, vertex_data, sizeof(GskQuadVertex) * GL_N_VERTICES);
|
|
|
|
op = &g_array_index (builder->render_ops, RenderOp, n_ops + 1);
|
|
op->op = OP_DRAW;
|
|
op->draw.vao_offset = offset;
|
|
op->draw.vao_size = GL_N_VERTICES;
|
|
}
|
|
|
|
/* We added new vertex data in both cases so increase the buffer size */
|
|
builder->buffer_size += sizeof (GskQuadVertex) * GL_N_VERTICES;
|
|
}
|
|
|
|
void
|
|
ops_offset (RenderOpBuilder *builder,
|
|
float x,
|
|
float y)
|
|
{
|
|
builder->dx += x;
|
|
builder->dy += y;
|
|
}
|
|
|
|
void
|
|
ops_add (RenderOpBuilder *builder,
|
|
const RenderOp *op)
|
|
{
|
|
g_array_append_val (builder->render_ops, *op);
|
|
}
|