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https://github.com/hajimehoshi/ebiten.git
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parent
1f95c98969
commit
d862a75fb3
23
image.go
23
image.go
@ -394,7 +394,12 @@ const MaxIndicesCount = (1 << 16) / 3 * 3
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const MaxIndicesNum = MaxIndicesCount
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const MaxIndicesNum = MaxIndicesCount
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// MaxVerticesCount is the maximum number of vertices for DrawTriangles and DrawTrianglesShader.
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// MaxVerticesCount is the maximum number of vertices for DrawTriangles and DrawTrianglesShader.
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const MaxVerticesCount = graphics.MaxVerticesCount
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//
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// Deprecated: as of v2.7. Use MaxVertexCount instead.
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const MaxVerticesCount = graphics.MaxVertexCount
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// MaxVertexCount is the maximum number of vertices for DrawTriangles and DrawTrianglesShader.
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const MaxVertexCount = graphics.MaxVertexCount
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// DrawTriangles draws triangles with the specified vertices and their indices.
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// DrawTriangles draws triangles with the specified vertices and their indices.
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//
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//
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@ -406,11 +411,11 @@ const MaxVerticesCount = graphics.MaxVerticesCount
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// Vertex contains color values, which are interpreted as straight-alpha colors by default.
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// Vertex contains color values, which are interpreted as straight-alpha colors by default.
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// This depends on the option's ColorScaleMode.
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// This depends on the option's ColorScaleMode.
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//
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//
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// If len(vertices) is more than MaxVerticesCount, the exceeding part is ignored.
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// If len(vertices) is more than MaxVertexCount, the exceeding part is ignored.
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//
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//
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// If len(indices) is not multiple of 3, DrawTriangles panics.
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// If len(indices) is not multiple of 3, DrawTriangles panics.
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//
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//
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// If a value in indices is out of range of vertices, or not less than MaxVerticesCount, DrawTriangles panics.
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// If a value in indices is out of range of vertices, or not less than MaxVertexCount, DrawTriangles panics.
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//
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//
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// The rule in which DrawTriangles works effectively is same as DrawImage's.
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// The rule in which DrawTriangles works effectively is same as DrawImage's.
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//
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//
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@ -427,9 +432,9 @@ func (i *Image) DrawTriangles(vertices []Vertex, indices []uint16, img *Image, o
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return
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return
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}
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}
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if len(vertices) > graphics.MaxVerticesCount {
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if len(vertices) > graphics.MaxVertexCount {
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// The last part cannot be specified by indices. Just omit them.
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// The last part cannot be specified by indices. Just omit them.
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vertices = vertices[:graphics.MaxVerticesCount]
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vertices = vertices[:graphics.MaxVertexCount]
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}
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}
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if len(indices)%3 != 0 {
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if len(indices)%3 != 0 {
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panic("ebiten: len(indices) % 3 must be 0")
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panic("ebiten: len(indices) % 3 must be 0")
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@ -567,11 +572,11 @@ var _ [len(DrawTrianglesShaderOptions{}.Images) - graphics.ShaderImageCount]stru
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// DrawTrianglesShader panics.
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// DrawTrianglesShader panics.
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// If one of the specified image is non-nil and is disposed, DrawTrianglesShader panics.
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// If one of the specified image is non-nil and is disposed, DrawTrianglesShader panics.
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//
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//
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// If len(vertices) is more than MaxVerticesCount, the exceeding part is ignored.
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// If len(vertices) is more than MaxVertexCount, the exceeding part is ignored.
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//
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//
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// If len(indices) is not multiple of 3, DrawTrianglesShader panics.
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// If len(indices) is not multiple of 3, DrawTrianglesShader panics.
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//
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//
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// If a value in indices is out of range of vertices, or not less than MaxVerticesCount, DrawTrianglesShader panics.
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// If a value in indices is out of range of vertices, or not less than MaxVertexCount, DrawTrianglesShader panics.
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//
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//
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// When a specified image is non-nil and is disposed, DrawTrianglesShader panics.
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// When a specified image is non-nil and is disposed, DrawTrianglesShader panics.
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//
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//
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@ -589,9 +594,9 @@ func (i *Image) DrawTrianglesShader(vertices []Vertex, indices []uint16, shader
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panic("ebiten: the given shader to DrawTrianglesShader must not be disposed")
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panic("ebiten: the given shader to DrawTrianglesShader must not be disposed")
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}
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}
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if len(vertices) > graphics.MaxVerticesCount {
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if len(vertices) > graphics.MaxVertexCount {
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// The last part cannot be specified by indices. Just omit them.
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// The last part cannot be specified by indices. Just omit them.
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vertices = vertices[:graphics.MaxVerticesCount]
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vertices = vertices[:graphics.MaxVertexCount]
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}
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}
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if len(indices)%3 != 0 {
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if len(indices)%3 != 0 {
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panic("ebiten: len(indices) % 3 must be 0")
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panic("ebiten: len(indices) % 3 must be 0")
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@ -48,16 +48,16 @@ const (
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is32bit = 1 >> (^uint(0) >> 63)
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is32bit = 1 >> (^uint(0) >> 63)
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is64bit = 1 - is32bit
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is64bit = 1 - is32bit
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// MaxVerticesCount is the maximum number of vertices for one draw call.
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// MaxVertexCount is the maximum number of vertices for one draw call.
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//
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//
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// On 64bit architectures, this value is 2^32-1, as the index type is uint32.
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// On 64bit architectures, this value is 2^32-1, as the index type is uint32.
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// This value cannot be exactly 2^32 especially with WebGL 2, as 2^32th vertex is not rendered correctly.
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// This value cannot be exactly 2^32 especially with WebGL 2, as 2^32th vertex is not rendered correctly.
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// See https://registry.khronos.org/webgl/specs/latest/2.0/#5.18 .
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// See https://registry.khronos.org/webgl/specs/latest/2.0/#5.18 .
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//
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//
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// On 32bit architectures, this value is an adjusted number so that MaxVertexFloatsCount doesn't overflow int.
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// On 32bit architectures, this value is an adjusted number so that MaxVertexFloatCount doesn't overflow int.
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MaxVerticesCount = is64bit*math.MaxUint32 + is32bit*(math.MaxInt32/VertexFloatCount)
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MaxVertexCount = is64bit*math.MaxUint32 + is32bit*(math.MaxInt32/VertexFloatCount)
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MaxVertexFloatsCount = MaxVerticesCount * VertexFloatCount
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MaxVertexFloatCount = MaxVertexCount * VertexFloatCount
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)
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)
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var (
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var (
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@ -81,13 +81,13 @@ func (q *commandQueue) appendIndices(indices []uint32, offset uint32) {
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// mustUseDifferentVertexBuffer reports whether a different vertex buffer must be used.
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// mustUseDifferentVertexBuffer reports whether a different vertex buffer must be used.
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func mustUseDifferentVertexBuffer(nextNumVertexFloats int) bool {
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func mustUseDifferentVertexBuffer(nextNumVertexFloats int) bool {
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return nextNumVertexFloats > graphics.MaxVertexFloatsCount
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return nextNumVertexFloats > graphics.MaxVertexFloatCount
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}
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}
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// EnqueueDrawTrianglesCommand enqueues a drawing-image command.
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// EnqueueDrawTrianglesCommand enqueues a drawing-image command.
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func (q *commandQueue) EnqueueDrawTrianglesCommand(dst *Image, srcs [graphics.ShaderImageCount]*Image, vertices []float32, indices []uint32, blend graphicsdriver.Blend, dstRegion image.Rectangle, srcRegions [graphics.ShaderImageCount]image.Rectangle, shader *Shader, uniforms []uint32, evenOdd bool) {
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func (q *commandQueue) EnqueueDrawTrianglesCommand(dst *Image, srcs [graphics.ShaderImageCount]*Image, vertices []float32, indices []uint32, blend graphicsdriver.Blend, dstRegion image.Rectangle, srcRegions [graphics.ShaderImageCount]image.Rectangle, shader *Shader, uniforms []uint32, evenOdd bool) {
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if len(vertices) > graphics.MaxVertexFloatsCount {
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if len(vertices) > graphics.MaxVertexFloatCount {
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panic(fmt.Sprintf("graphicscommand: len(vertices) must equal to or less than %d but was %d", graphics.MaxVertexFloatsCount, len(vertices)))
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panic(fmt.Sprintf("graphicscommand: len(vertices) must equal to or less than %d but was %d", graphics.MaxVertexFloatCount, len(vertices)))
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}
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}
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split := false
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split := false
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