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824ccfc562
If the wrong color states get passed, we need to figure that out, before we run shaders with junk values doing god knows what.
92 lines
3.4 KiB
C
92 lines
3.4 KiB
C
#pragma once
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#include "gskgputypesprivate.h"
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#include "gdk/gdkcolorprivate.h"
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#include "gdk/gdkcolorstateprivate.h"
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#define COLOR_SPACE_OUTPUT_PREMULTIPLIED (1u << 2)
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#define COLOR_SPACE_ALT_PREMULTIPLIED (1u << 3)
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#define COLOR_SPACE_OUTPUT_SHIFT 8u
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#define COLOR_SPACE_ALT_SHIFT 16u
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#define COLOR_SPACE_COLOR_STATE_MASK 0xFFu
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static inline GskGpuColorStates
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gsk_gpu_color_states_create_equal (gboolean output_is_premultiplied,
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gboolean alt_is_premultiplied)
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{
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/* We use ID 0 here for the colorspaces - if that ever becomes an issue
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* that it maps to SRGB, we need to invent something */
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return (output_is_premultiplied ? COLOR_SPACE_OUTPUT_PREMULTIPLIED : 0) |
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(alt_is_premultiplied ? COLOR_SPACE_ALT_PREMULTIPLIED : 0);
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}
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static inline GskGpuColorStates
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gsk_gpu_color_states_create (GdkColorState *output_color_state,
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gboolean output_is_premultiplied,
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GdkColorState *alt_color_state,
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gboolean alt_is_premultiplied)
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{
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g_assert (GDK_IS_DEFAULT_COLOR_STATE (output_color_state));
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g_assert (GDK_IS_DEFAULT_COLOR_STATE (alt_color_state));
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if (gdk_color_state_equal (output_color_state, alt_color_state))
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return gsk_gpu_color_states_create_equal (output_is_premultiplied, alt_is_premultiplied);
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return (GDK_DEFAULT_COLOR_STATE_ID (output_color_state) << COLOR_SPACE_OUTPUT_SHIFT) |
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(output_is_premultiplied ? COLOR_SPACE_OUTPUT_PREMULTIPLIED : 0) |
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(GDK_DEFAULT_COLOR_STATE_ID (alt_color_state) << COLOR_SPACE_ALT_SHIFT) |
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(alt_is_premultiplied ? COLOR_SPACE_ALT_PREMULTIPLIED : 0);
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}
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static inline GskGpuColorStates
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gsk_gpu_color_states_create_cicp (GdkColorState *output_color_state,
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gboolean output_is_premultiplied,
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gboolean cicp_is_premultiplied)
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{
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g_assert (GDK_IS_DEFAULT_COLOR_STATE (output_color_state));
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return (GDK_DEFAULT_COLOR_STATE_ID (output_color_state) << COLOR_SPACE_OUTPUT_SHIFT) |
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(output_is_premultiplied ? COLOR_SPACE_OUTPUT_PREMULTIPLIED : 0) |
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(GDK_DEFAULT_COLOR_STATE_ID (output_color_state) << COLOR_SPACE_ALT_SHIFT) |
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(cicp_is_premultiplied ? COLOR_SPACE_ALT_PREMULTIPLIED : 0);
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}
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static inline GdkColorState *
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gsk_gpu_color_states_get_output (GskGpuColorStates self)
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{
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return ((GdkColorState *) &gdk_default_color_states[(self >> COLOR_SPACE_OUTPUT_SHIFT) & COLOR_SPACE_COLOR_STATE_MASK]);
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}
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static inline gboolean
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gsk_gpu_color_states_is_output_premultiplied (GskGpuColorStates self)
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{
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return !!(self & COLOR_SPACE_OUTPUT_PREMULTIPLIED);
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}
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static inline GdkColorState *
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gsk_gpu_color_states_get_alt (GskGpuColorStates self)
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{
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return ((GdkColorState *) &gdk_default_color_states[(self >> COLOR_SPACE_ALT_SHIFT) & COLOR_SPACE_COLOR_STATE_MASK]);
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}
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static inline gboolean
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gsk_gpu_color_states_is_alt_premultiplied (GskGpuColorStates self)
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{
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return !!(self & COLOR_SPACE_ALT_PREMULTIPLIED);
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}
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/* Note: this function should only return a colorstate other than
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* color->color_state *only* if the shaders can't handle the conversion
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* from color->color_state to ccs.
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*/
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static inline GdkColorState *
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gsk_gpu_color_states_find (GdkColorState *ccs,
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const GdkColor *color)
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{
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if (GDK_IS_DEFAULT_COLOR_STATE (color->color_state))
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return color->color_state;
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else
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return ccs;
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}
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