302 lines
11 KiB
C
302 lines
11 KiB
C
#include <cogl/cogl.h>
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#include <string.h>
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#include "test-utils.h"
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typedef struct _TestState
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{
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CoglPipeline *pipeline;
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} TestState;
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typedef struct
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{
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int16_t x, y;
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float r, g, b, a;
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} FloatVert;
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typedef struct
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{
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int16_t x, y;
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uint8_t r, g, b, a;
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} ByteVert;
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typedef struct
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{
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int16_t x, y;
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int16_t r, g, b, a;
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} ShortVert;
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static void
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test_float_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[2];
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CoglAttributeBuffer *buffer;
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CoglPrimitive *primitive;
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static const FloatVert float_verts[] =
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{
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{ 0, 10, /**/ 1, 0, 0, 1 },
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{ 10, 10, /**/ 1, 0, 0, 1 },
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{ 5, 0, /**/ 1, 0, 0, 1 },
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{ 10, 10, /**/ 0, 1, 0, 1 },
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{ 20, 10, /**/ 0, 1, 0, 1 },
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{ 15, 0, /**/ 0, 1, 0, 1 }
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};
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buffer = cogl_attribute_buffer_new (test_ctx,
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sizeof (float_verts), float_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (FloatVert),
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G_STRUCT_OFFSET (FloatVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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attributes[1] = cogl_attribute_new (buffer,
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"color",
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sizeof (FloatVert),
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G_STRUCT_OFFSET (FloatVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_framebuffer_push_matrix (test_fb);
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cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
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primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
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6, /* n_vertices */
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attributes,
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2); /* n_attributes */
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cogl_primitive_draw (primitive, test_fb, state->pipeline);
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cogl_object_unref (primitive);
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cogl_framebuffer_pop_matrix (test_fb);
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cogl_object_unref (attributes[1]);
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cogl_object_unref (attributes[0]);
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cogl_object_unref (buffer);
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test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
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}
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static void
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test_byte_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[2];
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CoglAttributeBuffer *buffer, *unnorm_buffer;
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CoglPrimitive *primitive;
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static const ByteVert norm_verts[] =
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{
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{ 0, 10, /**/ 255, 0, 0, 255 },
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{ 10, 10, /**/ 255, 0, 0, 255 },
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{ 5, 0, /**/ 255, 0, 0, 255 },
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{ 10, 10, /**/ 0, 255, 0, 255 },
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{ 20, 10, /**/ 0, 255, 0, 255 },
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{ 15, 0, /**/ 0, 255, 0, 255 }
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};
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static const ByteVert unnorm_verts[] =
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{
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{ 0, 0, /**/ 0, 0, 1, 1 },
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{ 0, 0, /**/ 0, 0, 1, 1 },
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{ 0, 0, /**/ 0, 0, 1, 1 },
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};
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buffer = cogl_attribute_buffer_new (test_ctx,
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sizeof (norm_verts), norm_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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attributes[1] = cogl_attribute_new (buffer,
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"color",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_attribute_set_normalized (attributes[1], TRUE);
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cogl_framebuffer_push_matrix (test_fb);
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cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
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primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
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6, /* n_vertices */
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attributes,
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2); /* n_attributes */
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cogl_primitive_draw (primitive, test_fb, state->pipeline);
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cogl_object_unref (primitive);
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cogl_object_unref (attributes[1]);
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/* Test again with unnormalized attributes */
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unnorm_buffer = cogl_attribute_buffer_new (test_ctx,
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sizeof (unnorm_verts),
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unnorm_verts);
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attributes[1] = cogl_attribute_new (unnorm_buffer,
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"color",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_BYTE);
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cogl_framebuffer_translate (test_fb, 20, 0, 0);
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primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
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3, /* n_vertices */
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attributes,
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2); /* n_attributes */
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cogl_primitive_draw (primitive, test_fb, state->pipeline);
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cogl_object_unref (primitive);
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cogl_framebuffer_pop_matrix (test_fb);
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cogl_object_unref (attributes[0]);
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cogl_object_unref (attributes[1]);
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cogl_object_unref (buffer);
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cogl_object_unref (unnorm_buffer);
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test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
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test_utils_check_pixel (test_fb, offset_x + 25, offset_y + 5, 0x0000ffff);
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}
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static void
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test_short_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[2];
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CoglAttributeBuffer *buffer;
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CoglPipeline *pipeline, *pipeline2;
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CoglSnippet *snippet;
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CoglPrimitive *primitive;
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static const ShortVert short_verts[] =
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{
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{ -10, -10, /**/ 0xffff, 0, 0, 0xffff },
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{ -1, -10, /**/ 0xffff, 0, 0, 0xffff },
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{ -5, -1, /**/ 0xffff, 0, 0, 0xffff }
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};
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pipeline = cogl_pipeline_copy (state->pipeline);
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cogl_pipeline_set_color4ub (pipeline, 255, 0, 0, 255);
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buffer = cogl_attribute_buffer_new (test_ctx,
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sizeof (short_verts), short_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (ShortVert),
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G_STRUCT_OFFSET (ShortVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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attributes[1] = cogl_attribute_new (buffer,
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"color",
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sizeof (ShortVert),
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G_STRUCT_OFFSET (ShortVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
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cogl_attribute_set_normalized (attributes[1], TRUE);
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cogl_framebuffer_push_matrix (test_fb);
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cogl_framebuffer_translate (test_fb,
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offset_x + 10.0f,
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offset_y + 10.0f,
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0.0f);
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primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
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3, /* n_vertices */
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attributes,
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2); /* n_attributes */
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cogl_primitive_draw (primitive, test_fb, pipeline);
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cogl_object_unref (primitive);
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cogl_framebuffer_pop_matrix (test_fb);
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cogl_object_unref (attributes[0]);
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/* Test again treating the attribute as unsigned */
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (ShortVert),
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G_STRUCT_OFFSET (ShortVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
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/* XXX: this is a hack to force the pipeline to use the glsl backend
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* because we know it's not possible to test short vertex position
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* components with the legacy GL backend since which might otherwise
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* be used internally... */
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pipeline2 = cogl_pipeline_new (test_ctx);
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snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
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"attribute vec4 color;",
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"cogl_color_out = vec4 (0.0, 1.0, 0.0, 1.0);");
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cogl_pipeline_add_snippet (pipeline2, snippet);
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cogl_framebuffer_push_matrix (test_fb);
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cogl_framebuffer_translate (test_fb,
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offset_x + 10.0f - 65525.0f,
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offset_y - 65525,
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0.0f);
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primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
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3, /* n_vertices */
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attributes,
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1); /* n_attributes */
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cogl_primitive_draw (primitive, test_fb, pipeline2);
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cogl_object_unref (primitive);
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cogl_framebuffer_pop_matrix (test_fb);
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cogl_object_unref (attributes[0]);
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cogl_object_unref (pipeline2);
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cogl_object_unref (pipeline);
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cogl_object_unref (buffer);
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test_utils_check_pixel (test_fb, offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (test_fb, offset_x + 15, offset_y + 5, 0x00ff00ff);
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}
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static void
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paint (TestState *state)
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{
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cogl_framebuffer_clear4f (test_fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
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test_float_verts (state, 0, 0);
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test_byte_verts (state, 0, 10);
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test_short_verts (state, 0, 20);
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}
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void
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test_custom_attributes (void)
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{
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CoglSnippet *snippet;
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TestState state;
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cogl_framebuffer_orthographic (test_fb,
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0, 0,
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cogl_framebuffer_get_width (test_fb),
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cogl_framebuffer_get_height (test_fb),
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-1,
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100);
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state.pipeline = cogl_pipeline_new (test_ctx);
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snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
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"attribute vec4 color;",
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"cogl_color_out = color;");
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cogl_pipeline_add_snippet (state.pipeline, snippet);
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paint (&state);
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cogl_object_unref (state.pipeline);
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cogl_object_unref (snippet);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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